Laugh, and the world laughs with you; weep, and you weep alone.

A writer is, after all, only half his book. The other half is the reader and from the reader the writer learns.

可持续发展不仅仅是保护树木；它关乎确保自然和人类共同繁荣的未来。

每个人心中都有一个深渊。有时你会凝视它，有时你不会。